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I want to make it so that I can write any text, then encrypt it and generate a key with which I can get the already decrypted text!

I found a guide, but I can’t figure out how to make a comparison, that if the key is correct, it gives me a decrypted message, if it’s wrong, an error

Guide Link: https://nitratine.net/blog/post/encryption-and-decryption-in-python/#what-is-symmetric-encryption

from cryptography.fernet import Fernet
from tkinter import *

window = Tk()
window.geometry("300x300")

lbl0 = Label(window, text="Enter the key")
lbl0.pack(pady=10)

ent = Entry()
ent.pack()

lbl1 = Label(window, text="Result:")
lbl1.pack(pady=10)

lbl2 = Label(window, text="")
lbl2.pack(pady=10)

global key

def write_key():
    key = Fernet.generate_key()
    with open("key.key", "wb") as key_file:
        key_file.write(key)

def load_key():
    return open("key.key", "rb").read()

def generate():
    message = ent.get().encode()
    write_key()
    key = load_key()

    f = Fernet(key)

def compare():
    if key == ent.get():
        print("Success")
    else:
        print("Fail")

btn1 = Button(text="generate", command=generate)
btn1.pack()

btn2 = Button(text="compare", command=compare)
btn2.pack()

window.mainloop()
Thingamabobs
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Boris Sharikov
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    You are comparing the key with a string from the Entry. It's not clear what you want to achieve with this. Your tutorial has a [comparison between the original message and the decrypted bytes](https://nitratine.net/blog/post/encryption-and-decryption-in-python/#demonstration). – 8349697 Dec 10 '22 at 12:39

0 Answers0